Entities mentioned:
- Zah Frazier: Self-preservation, Determination, Professional pride
- Chicago Bears: Competitive spirit, Professional pride, Duty
- Ryan Poles: Duty, Loyalty, Professional pride

Article Assessment:
Credibility Score: 75/100
Bias Rating: 50/100 (Center)
Sentiment Score: 45/100
Authoritarianism Risk: 20/100 (Strongly Democratic)

Bias Analysis:
The article presents a balanced view of the situation, quoting directly from team management and providing factual background on the player. There's no apparent lean towards criticism or praise of the team's decision, maintaining a neutral stance.

Key metric: NFL Team Performance

As a social scientist, I analyze that this situation could potentially impact the Chicago Bears' performance for the upcoming season. The absence of a promising rookie cornerback may affect the team's defensive depth and strategy. The Bears' management's handling of this sensitive personal issue demonstrates a commitment to player welfare, which could positively influence team culture and player loyalty in the long term. However, the immediate impact on field performance might be negative, especially if Frazier was expected to contribute significantly in his rookie year.